Acetylene-gas lamp.



0 0 m 9, H a j d nu t n e l a P N A M flu H U W m 0 4 6 nu N ACETYLENE GAS LAMP.

(Application filed Juns 3, 1899.)

(No Model.)

INVENTOR- WZ'am Gib/2min WITNESSES: A

ATTORNEY rm: upnms PETERS co., PHOTO-LUNG" WASHINGTON, n. c.

NITED STATES PATENT OFFICE.

IVILLIAM C. I-IOMAN, OF MERIDEN, CONNECTICUT, ASSIGNOR TO THE EDWARD MILLER & COMPANY, OF SAME PLACE.

ACETYLEN E-GAS LAM P.

SPECIFICATION forming part of Letters Patent a... 640,912, dated January 9, 1900. Application filed June 3,1299. SeriaINo. 719,184. (No model.)

To all whom it may concern:

Be it known that 1, WILLIAM G. HoMAN, a citizen of the United States, residing at Meriden, New Haven county, State of Connectiout, have invented certain new and useful Improvements in AcetyleneGas Lamps, of which the following is a full, clear, and exact description.

My invention relates to improvements in acetylene-gas lamps; and it consists in the novel features hereinafter fully described.

The chief object of myinvention is to provide in lamps of this character a removable carbid-holder in which the gas is generated, and to so arrange and construct the parts that their effectiveness will be in no wayimpaired by reason of the escape of water or gas through channels other than the right ones, incidentally combining therewith features of simplicity and economy.

In the drawings, Figure 1 is a side elevation of the lamp as a whole. Fig. 2 is a side elevation chiefly in section to show features of internal construction. Fig. 3 is a horizontal section on the plane of the line X X.

A is a water chamber or reservoir.

B is an outside casing connected to the reservoir A, but separated therefrom by a suitable partition.

C is an inside chamber or carbid-holder in which the gas is generated. The chamberC is telescopic, so as to permit its being opened. The lower section of the telescopic chamber 0 is mounted upon a base D, which may be detachably secured to the outside casing B by screw-threads or otherwise, a suitable gasket E being interposed to effect an air-tight connection.

Upon referring to Fig. 2 it will be seen that around the carbid-holder C and inside of the casing B is an air-space. Connected with this air-space is a tube F, in which the burner G may be suitably fitted and secured, so that any gas or vapor within the said air-space will be forced out through the tube F and burner G, if under pressure.

Fitted tightly within the reservoir A is a pipe H, within which the valve mechanism is located. This valve mechanism is for controlling the fiow of water from the reservoir A to the carbid-holder C, an opening it in said pipe permitting the Water to flow freely to the valve. (Not shown.) Any suitable form of valve may be employed; but the one specifically described in another application filed by me, serially numbered 719,183, (Case 13,) is preferred.

In the drawings, I is a handle so connected to the valve that the supply of water to the carbid-chamber C may be regulated or entirely out off.

J is a water-distributing tube fixedly carried by the carbid-casing C and of greater di ameter than the diameter of the valve-tube I-I, so that the base D and said carbid-chamber C may be freely turned for the purposes of attachment or detachment. The tube J is suitably slotted or perforated, so that water let into it through the valve-tube H may pass on into the carbid-chamber proper.

K is a yielding gasket or washer-like piece, preferably formed of rubber and placed around the valve-tube H, closely adjacent to the partition between the water-chamber A and the casing B. The washer K is of greater diameter than the diameter of the tube J, and its thickness is such that when the parts are in their normal operative position it will serve to prevent the escape of water or vapor from said tube J into the space between the casing D and chamber 0.

L L are outlets in the carbid-chamber C, preferablyin the top thereof. Through these outlets only the gas generated within said chamber can escape, and itis this gas that sup plies the burner G, as previously described. Were it not for the gasket K the water co1n ing through the tube H might (in case of the slits in tube J being partially obstructed by the decomposed carbid) find its way up around the outside of the tube H and out at the up per end of tube J; but the upper end of tube J being closed by the gasket K compels the water to pass through the slits in tube J directly to the carbid in chamber C by virtue of the pressure due to the column of water in tube I'I. Moreover, there being considerable heat attending the decomposition of the carbid in the generation of gas a part of the water falling into the tube J would be vaporized and in the absence of the gasket K be condensed on the cold upper surface of the gas-chamber, and the products of condensation might get into the tube F and from thence be carried to the burner G, where it would either put out or impair the flame.

The particular construction and method of attachment of the removable carbid-holder are set forth in detail in another application filed by me, serially numbered 719,873, (Case A,) in which the same and certain other features are made the subject-matter of claims therein. I have not, therefore, described those details in this case, but have referred to them generally for the purpose of making clear the application to a gas-lamp of the improvements claimed herein.

What I claim is- 1. In a gas-lamp, a water-reservoir, a gaschamber, a carbid-holder Within said chamber, a water-supply pipe, a water-distributing pipe around said supply-pipe and independent thereof, said distributing-pipe being carried by the carbid-holder, and a yielding washer around said water-pipe closing the outer end of said distributing-pipe when the parts are assembled.

2. In a gas-lamp, a water-reservoir, a gaschamber, a removable carbid-holder within said chamber, a water-supply pipe, a waterdistributing pipe around said supply-pipe but independent thereof, a yielding washer 30 around said water-pipe, the external diameter of said washer being greater than the internal diameter of the distributing-pipe and closing the latter at its outer end when the parts are assembled.

3. In a gas-lamp, a water-reservoir, a gaschamber, a removable carbid-holder within said chamber, a water-distributing pipe depending from the upper wall of said holder, a water-pipe leading from said reservoir into 40 said distributingpipe, a yielding washer around said water-pipe and located between the inner wall of the gas-chamber and the outer Wall of the carbid-holder, said washer being under compression when the parts are 45 assembled to close the adjacent end. of the distributing-pipe.

Signed at Meriden, Connecticut, this 29th day of May, 1899.

WILLIAM C. HOMAN.

Witnesses:

ALFRED DUNLOP, FRANK S. PARKER. 

